Power-transmitting mechanism



G- R. GEHRANDT POWER TRANSMITTING MEcHANrsM.

FILED SEPT.

E E IVY. l@

' producing Patented dan. 2, i923. i i

EARTH-BQRING TION GF DELAWARE.

esplicativa fue@ sepember i5, raie.

specification. j

This invention relates to power.transmittin mechanism.

n. machine operation, it is often dessin able or necessary to provide a multiple drive. that is to simultaneously drive one part oft the machine in one lirection and another part ot the machine, sometimes in the saine direction and another time in reverse direction.' l A One of. the objects ot. the present invention is to provide a simple mechanism for a multiple drive,

Another object. is to provide mechanism whereby one of the drlves may be 'readily reversed. at will.

Another ohject is to" provide a multiple drive which is compact, simple, reliable, ellicicnt and readily enclosed. A

Other objects .of the invention will appear from the specificationand claims.

An embodiment of the invention is illus trated in the accompanying drawings 1n which Fig. l is a section thru the mechanism. Fig. 2 is a section onthe line 2J-2 of; Fig'. l.

The drive shaft 5 ot the ting mechanisxnfwhich may he rotated from any suitable source of power, (not shown) is adapted, when required, to rotate a driven shaft .6 always in the saine relative directon and to rotate a second driven shaft 7 in the same or reverse relative direction. as desired. Shaft 7 encircles shatt- 6 and is rotatably journaled thereon hy hearings H and 9.

The transmitting mechanism is supported hy and provided with suitable hearings in a iframe ll), the ,traine may he a part ci? the frame work of the machine vwith which the transmitting mechanism is associated or it may be formed as a unitI with the mechanism, to he applied to the machine.

Shaft 5 carries and has rigidly secured thereto at one end a pair of drivingr L(gear Wheels 15 and 16. Gear wheel 15 meshes at points 180' degrees apart, with a pair of power transmit- 'driven gear wheels both 'of cl ycarries at one end j Serial No. 323,8i3.

wheel 16 meshes with a adjacent gear wheel 17. Gear wheels 15 and i6 are in axial alignment and gear wheels l? 1.?5 and 19 are also in axial alignment at right angles to shaft y Gear wheel 17 and shaft are rigidly securet, together, by suitable means, such as a lcey, so that shafts and 3 always rotate in the relative direction. l l

Gear wheels 18 and 19 are rotatably iour- 66 naled upon hcllowshatft 7, and, since Jthey driven gear wheel 19' mesh with their respective (1o-operating gears, le() degrees apart, they are rotated in.

the reverse direction. il. clutch 25 is provided. to inter-connect shaft 7 with either of 70 the gear wheels i8 or 19. f

Clutch 25 comprises a sleeve Q6 slidahle upon, but rotatable hy shaft 7. rThis sleeve.

'a-ws 27 adapted to engage corresponding jaws 28 on gear wheel i9, and 75 at the other end a similar set or jaws Z9- ar'lapted to engage corresponding jaws 3d on gear wheel i8. split collar 32 is secured in groove in sleeve 26, being clamped thereto hy bolts 325. (lollar/l has a pair ot pins-B0 34 on opposite sides thereof', which tit into openings in the hifurcated end oi' a clutch lever Clutch lever is suitably 'pivoted to the frame.

`When the tree end of clutch lever 35 is 55 depressed, sleeve 26 is raised on shai't 7, causing the lliter-engagement'of jaws 2T and 28, lhercupon shaft T is driven ny gear wheel l) in the same direction as shaft 6 is heingf driver.. o 9G lt the l'ree end o'l' clutch lever 3?: is raised, sleeve 26 is lowered causing the inter-cn- ;jagcincnt olt jaws 29 and El). hatt is thereupon rotated hy gear wheel l?, in the reverse direction. sa

'hen the clutch lever is in inidposition, utch 'jaws are disengaged and shalt 7 docs not rot-atc.

Shafts t3 and 'T may he suitahly connected. to the parts of the n'lachine to he driven. ice ln thel embodiment shown.y these .shafts are adapted to drive a pair of sprocket wheels 4() and al over which the drive chains` l2 and 43 respectively pass. T chains may pass over sprocketrvheels associated with m5 the parts to he driven. "lr'or example. chain .23 may he used. to drive the spindle oi" -a drill or lsbring machine, whilechain :nay-

17 and i8, while gear 55 yhe utilized to edect the raising' and lowering of the drill spindle.

Sprocket Wheel 440 is keyed to shaft r'so that it rotates therewith in accordance with the position of the'clutch 25. Sprocket wheel 41 is loosely' mounted upon shaft 6 and is adapted to 'be'connected thereto and lolisconnected 'therefrornlby a clutch 45.

Clutch -45 consists of a collar 46 slidably mounted uponV 4hut rotated hy shaft 6. Sleeve 46 is provided with jaws47 adapted tofengage jaws 48 upon sprocket wheel 41.

- A split collar 49 similar to that of clutch 25 the drive sha encircles sleeve. 46 andvis adapted to he raised and lowered by a clutch lever 50.'

When clutch' lever 50 is in the 'positionl shown, jaws 47 and 48 are out of `en,f ,gageinent and sprocket wheel 41 is disconnected from shaft 6. 1When, how-ever, the free end of' lever 5() is de ressed sleeve 46 is raised and a u v jaws 4i' and 48 are thrown into engagement.

.The inter-engagement of 'jaws 47 and 4hconnects shaft 6 to sprocket wheel 41 and the sprocket wheel is rotated thereby.

Having described my invention, what yclaim is l. Power transmittingmechanism having a driveshaft, a pair of concentric driven .shafts to he operated thereby, means for connecting the drive shaft with one of the driven shafts to produce lrotation always in the saine relative direction and mea-ns fory connecting the drive shaft with the other driven shaft so that the rotation may be relatively in the saine or reverse direction.

2. Power transmitting mechanism having a drive shaft, a pair of gears secured thereto,

`a driven shaft, a gear associated therewith for engaging one of the gears on the drive.

.A insonne '3. Power transmitting mechanism-having two driven shafts, one shaft being journals upon the-other, three gear wheels associated with said driven shafts, a drive shafttapair .Y ot gear wheels on the drive shaft: for 1 erating with the gear wheels of' the 'driven V l shafts, and means for interoome'ctin -dhezofai the driven shafts with' thegfear w l cause said shaft to be drivenigfeitheridirecf tion at will.

4. Power transmitting mechanismhavingf an inner driven shaft, an onterfdiiven'ehaft the drive shaft tofbe rotated thereby, a gear lwheel on saidinner shaft and cooperating with one of said driving gears to rotate said inner shaft alwaysin the ASame direction, a'

pair of drivengear 'wheels jonrnaled upon said outer shaft, each gear Wheel cooperating withone of said driving gear wheels whereby said driven gear wheels are rotated in opposite directions, and a clutch keyed to litt-4 jonrnaled on said inner shaft, adriveshaft,l ,y a pair of driving gear wheels secured toslide upon endrotate saiddrivenshaft and 'A operable to interconnect said shaft /witheither of .said dri-ven gear wheels tov cause rotation of said outer shaft in either. dlrectlon.

5. Power transm1tting mechanism having 'a drive shaft, eipair of driving gear wheels rotated thereby, an inner driven shaft,'a gear wheel thereon engaging one of'sa'i-d dniving-wheels'to rotate said inner shaft' always in the same direction, an outer driven shaft journaled on said inner' shaft, a pair of driven gear wheels' journaled to freely rotate upon said outer shaftand engaging said driving gear wheels to he rotated in op,- posite directions, a clutch for interconnecting said outershaft with either of the driven vgear wheels associated therewith whereby said outer shaft may he driven ineither direction, a driven member associated with said inner shaft, and a clutch for connecting and disconnecting said inner shaft and said' driven member. .1

ln testimony whereof 1 hereunto suhscrihed my name.

GUs'rav n. ernennen 

